Table of Contents
Advertisement
5-1
INTRODUCTION
This chapter lists all the error messages, their probable causes, and suggested procedures to
return the ARIES™ Fire Alarm/Suppression Control Unit to proper operating condition.
Do not attempt any of the corrective actions listed in this chapter until you
have:
•
Physically disconnected the wiring to actuator assemblies (if used) from the
release-circuit terminals, shorted the leads together, and wrapped the leads
in insulating tape
•
Physically disconnected all control heads (if used) from their associated
agent storage container discharge valves
WARNING
•
Physically disconnected the wiring to solenoid valves (if used) for pre-
action/deluge-sprinkler systems
•
Ensured that emergency operations controlled by this system such as facility
power shutoff are bypassed
•
Notified personnel in the facility and at off-premises monitoring
locations that you are working on the system and that you will inform
them when system servicing has ended.
General System Events
Error Message
AC Supply Fault On
P/N 06-236530-001
CHAPTER 5
TROUBLESHOOTING
Table 5-1. General System Events
Probable Cause
Loss or degradation of primary power
from commercial light and power
company. Message will appear if AC
supply voltage drops to 85% or less
of the normal operating voltage.
Accompanied by message "System
Changed Over to Battery Power" if
standby battery used.
5-1
Corrective Action
• Notify commercial light and power
company of loss of service.
• Check connections to main circuit board
TB13. Use voltmeter to check for
nominal 120/240 Vac at TB13.
• Check for proper setting of printed-
circuit-board AC Selection Switch. Refer
to Figure 2-8
• Remove secondary and primary power.
Label and disconnect all field wiring.
Caution:
Disconnect all electrical control heads
and short together and tape wiring to
actuator
s (if applicable)
• Ensure AC Selector Switch on power
supply is correctly set for line voltage.
Refer to Figure 2-5
• Re-install printed-circuit board, connect
field wiring, and apply primary and
secondary power if incorrect AC
Selector-Switch setting. Perform
functional tests as necessary
August 2013
Advertisement
Table of Contents
